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Obtain User ID in ContextListener

We have ContextListener implemented ( i.e. our class implements javax.servlet.ServletContextListener)

Am trying to obtain the user id and I have ServletContextEvent object available as parameter for contextInitialized

Right now it is hardcoded.

The same username is obtained in JSP like this

<jstl:set var="userId" scope="session" value="<%= request.getRemoteUser() %>"></jstl:set>

Is there anyway, I obtain the same from JSP, as I need the value that is being set there

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rrz

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Ajay Chowdary Kandula

ASKER

What do you really want to accomplish here ?
Obtain the username in the file carsContextListener.java

What is hardcoded ? Which user ? Please show us that code.
//code below

public void contextInitialized(ServletContextEvent contextEvent) {
            try{
                  String fileSeperator = System.getProperty("file.separator");

              //FIXME: the user is hardcoded, need to get an actual session attrib
              contextEvent.getServletContext().setAttribute("user", " rrz@871311");

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rrz

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dpearson

I think if you're trying to work with the "current user" inside the ServletContext initialization you probably have the wrong design in mind.

The ServletContext is a single context shared by all Servlet and created at startup. It shouldn't be used to store user specific information.

You probably should instead be implementing a Servlet (not a ServletContext) - which is initialized to handle an individual request (e.g. a page load) and so has the idea of a "current user" (or current session). That Servlet could then make use of the ServletContext to get work done if necessary (e.g. gaining access to a database which has connections stored in the context).

Hope that helps,

Doug

Ajay Chowdary Kandula

ASKER

Thanks Guys for the Help, your inputs helped me to understand the concepts